Tomas Helikar (IMAGE) University of Nebraska-Lincoln Caption Tomas Helikar, Susan J. Rosowski Associate Professor of Biochemistry at the University of Nebraska-Lincoln, is among a group of scientists across the U.S. pursuing a virtual immune system. Credit University Communication|University of Nebraska-Lincoln Usage Restrictions for display on the EurekAlert! Website and for re-use in news coverage and on social media related to this news release. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.